- Hamilton, John Brown, 1847-18981
- Hart, Robert W. (Robert Watson), 1889- author1
- Holmgren, Frithiof, 1831-1897, author1
- Holt, Joseph, 1839-19222
- Holt, Joseph, 1839-1922 author1
- Holt, Joseph, 1839-1922, author3
- Humane Society of the Commonwealth of Massachusetts, author.1